ZnO Nanoparticles as Ethanol Gas Sensors and the Effective Parameters on Their Performance

doi:10.1016/j.jmst.2013.03.009

Abstract

Abstract:

ZnO nanoparticles are synthesized and applied as ethanol gas sensors. In some cases, the sensitivity and response time of these particles are shown to be higher than that has been reported in the literature. It has been investigated that the most possible reason for this higher gas sensing performance can be attributed to the quantity of the activity coefficient of its initial components. However, other effects such as pH and thermal decomposition are of importance as well. Specific ion interaction (SIT) model is applied to derive the mean activity coefficient values of the additives used in synthesis of ZnO nanoparticles.

Key words: ZnO nanoparticles, Gas sensors, Activity coefficient, pH, Thermal decomposition

Asieh Sadat Kazemi, Reza Afzalzadeh, Mohamadreza Abadyan. ZnO Nanoparticles as Ethanol Gas Sensors and the Effective Parameters on Their Performance[J]. J. Mater. Sci. Technol., 2013, 29(5): 393-400.

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